ZyXEL Communications ZYWALL USG 2000 Manual page 788

Unified security gateway

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Table of Contents

Chapter 48 Reports

The following table describes the labels in this screen.

Table 257 Maintenance > Report > Anti-Spam

Mail Sessions

Select this check box to have the ZyWALL collect anti-spam statistics.

The collection starting time displays after you click Apply. All of the

statistics in this screen are for the time period starting at the time

displayed here. The format is year, month, day and hour, minute, second.

All of the statistics are erased if you restart the ZyWALL or click Flush

Data. Collecting starts over and a new collection start time displays.

Click Apply to save your changes back to the ZyWALL.

Click Reset to begin configuring this screen afresh.

Click this button to update the report display.

Click this button to discard all of the screen's statistics and update the

report display.

This field displays the number of e-mails that the ZyWALL's anti-spam

feature has checked.

This is the number of e-mails that the ZyWALL has determined to not be

This is the number of e-mails that the ZyWALL has determined to be

This is the number of e-mails that matched an entry in the ZyWALL's anti-

spam black list.

The ZyWALL can check the sender and relay IP addresses in an e-mail's

header against DNS (Domain Name Service)-based spam Black Lists

(DNSBLs). This is the number of e-mails that had a sender or relay IP

address in the header which matched one of the DNSBLs that the ZyWALL

This is how many queries that were sent to the ZyWALL's configured list

of DNSBL domains and did not receive a response in time.

This is how many e-mail sessions the ZyWALL allowed because they

exceeded the maximum number of e-mail sessions that the anti-spam

feature can check at a time.

You can see the ZyWALL's threshold of concurrent e-mail sessions in the

Anti-Spam > Status screen.

Use the Anti-Spam > General screen to set whether the ZyWALL

forwards or drops sessions that exceed this threshold.

ZyWALL USG 2000 User's Guide

Troubleshooting